Sanding device



June 15, 1954 w. c. WANDROIK 2,681,242

smnmc DEVICE Fil ed June 23, 1952 ZShefS Sheet 1 Walter C. Wandraik JNVENTOR.

June 15, 1954 w. c. WANDROIK 2,681,242

SANDING DEVICE Filed June 23, 1952 2 Sheets-Sheet 2 Walter G. Wand/0M INVENTOR.

BY w ml? Atlonu]:

to provide a sanding forming part hereof, to like parts Figure 1 is a fragmentary bottom plan'view or a vehicle with the invention mounted thereon and showing diagrammatically the electrical Patented June 15, 1954 UNITED STATES IPATEN T OFFICE SANDING'DEVICE Walter. C. Wandroik,.-Morton Grove, Ill. Application June 23, 1952, Serial No. 294,983

(Cl. BBL-33) 5 Claims.

Thisinvention"relatesto new and useful sand dispensers forvehioles an'dthe primary object of the present invention is vice. mountable within the luggage compartment of avehicle and having a motor actuator switch to provide a sanding demountable on the floor board of avehicle so that sand maybe dispensed in front of the rear wheels of the vehicle ates the switch.

when the driver of the vehicle actu- Another important object of the present invention is to provide a sanding device including a'pair of feed screws and a removable power unit operativ'ely connected to the screws for drivingthesame as a unit.

A further object of the present invention is to provide a sanding apparatus, for vehicles, of the aforementioned character wherein the power unit is composedof a novel gear drive arrangementwith reinforcing and strengthening means for the gear drive.

A still further aim of the present invention is device that issimple and practical in construction, strong and reliable in use, small'and compact in structure, efiicient and durable in operation, inexpensive to manufacture, and otherwise well adapted for the purposes for which the same is intended.

Other objects and advantages reside in the details of construction and operation as more fully hereinafter described and claimed, reference being had to the accompanying drawings wherein like numerals refer throughout, in which:

circuit forming part of the invention;

Figure2 is a transverse vertical. sectional view taken substantially on the plane of" section line 2+2 of Figure 1;

'FigureS is an enlarged fragmentary view of Figure 2 and with parts broken away and shown Figure 6 is an enlarged fragmentary view of R Figure 2 and showing the conduit means used in the invention.

Referring now to the drawings in detail, wherein for the purpose of illustration, there is disand conveying closed a preferred embodiment of the present placed in the housing.

14, a front wall lfiand register with the openings ber 30 is provided with an fasteners 40. An electric *movably secured to the end wall it ture shaft 54 of the conduits or tubes til extend apertures in the side walls of side walls of the member invention, the numeral I 0 represents an elongated housing having spaced side walls l2 :and a rear wall is. The upper wall 26 of the housing It! is hinged, as at 22,: to

the rear wall it and carries a hasp 24 engageable with an eye 26 on the front wall, so that a look engaged in the eye 26 .will retain the closure or wall 26) in its closed position.

The forward and rear walls It and I18 arezprovided with registering openings 28. A casing 32 of the between the walls I 6 the casing. member 30 28. The casing meminverted V-shaped top wall 34 forming a deflector for abrasive material, such as sand, placed in the housing.

An open bottom casing 36 is disposed Within the member 3!} and includes flanges 38 that are removably secured to the bottom wall 32 -by motor 42 is suitably rethe bottom wall 32 and faces of the casing 36 on which there is supported a bearing 46 for one end of a tubular supporting shaft 48. A coupling shaft 50 is secured by a coupling element 52 to the armamotor and extends into the shaft 43. A retaining screw 56 extends radially into the shaft 48 and enters a groove in the shaft 56. A drive, beveled gear 58 is fixedly attached to shaft 50 for rotation therewith.

The inner ends of a pair of coaxial horizontal inwardly through housing It? and are outer lock rings 62 hav- The inner ends of the bearing rings 64 on'the 3D. Spaced apertures upper peripheries of "the rings 64 to receive sand housing 50 and extends held thereto by inner and ing internal set screws. tubes is are positioned in Be a-re provided in the tubes t9 adjacent the *Registeringopenings 63 in the juxtaposed walls *of'the 'memberiti and casing 35 rotatably receive the hub portions of beveled gears it and 12 that mesh with gear 58.

The gears l6 and 12 are formed with centralrecesses 14 that receive the ends of a tubular member 16 having a central transverse aperture 73 through which the shaft 58 extends.

Conveyor screws til extend through the tubes fill and their inner multi-sided ends 82 enter inuiti-sided sockets 8A in the hubs of the gears it and 12. The outer ends of the screws are rotatably supported in bearings 86 in the angulated portions 88 of the tubes 60.

is suitably fixed in housing I housing,

. material in the housing A downwardly and. forwardly inclined baffle 90 I!) and slopes toward the inner end portions of tubes 60. The baflle 90 is formed with a central opening accommodating the casing member 30.

Housing 10 is suitably mounted within the luggage compartment C of a vehicle V and the angulated portions 88 extend through the fenders F and terminate in front of the rear wheels W of the vehicle. The motor is connected to the battery of the vehicle and to a switch 92 by conductors 94. The switch 92 is floor board of the vehicle adjacent the brake pedal, whereby the driver may to cause rotation of wheels.

In order to prevent sand from backing up in the tubes 69, the inner end portions of the screws 80 supports pairs of washers E75 between which is disposed a resilient sleeve 98 that will engage the inner peripheries of the tubes 63.

In view of the foregoing description taken in conjunction with the accompanying drawings it 7 is believed that a clear understanding of the device will be quite apparent to those skilled in this art. A more detailed description is accordingly deemed unnecessary;

It is to be understood, however, that even though there is herein shown and described a preferred embodiment of the invention the same is susceptible to certain changes fully compreaxial tubes having inner perforated ends extend ing through said side walls and into the housing, said perforations being in the upper portions of said tubes, a pair of feed screws rotatably supported in the tubes for conveying abrasive mate rial in the housing through the tubes, the outer ends of said tubes being provided with outlet means adapted to be disposed in front of the driving wheels of a vehicle, and power means in the casing member and operatively connected to the screws for rotating the latter.

2. A sanding device for vehicles comprising a housing having a casing member therein and a pair of spaced parallel side walls, a pair of coaxial tubes having inner perforated ends extending through said side walls and into the said perforations being in the upper portions of said tubes, a pair of feed screws rotatably supported in the tubes for conveying abrasive through the tubes, the outer ends of said tubes being provided with outlet means adapted to be disposed infront of the driving wheels of a vehicle, an electric motor in the casing member, a drive gear on the armature shaft of the motor, and a pair of driven beveled gears on the adjacent ends of the screws meshing with the drive gear.

3. In a vehicle having a luggage compartment with a bottom wall, a sanding device mounted what is mounted on the,

actuate the motor the feed screws for con- I veying sand to the ground in front of the rear ing inner perforated within the compartment and including a housing having a compartment therein with an inverted ll-shaped upper wall, a pair of coaxial tubes having inner perforated ends extending into the housing and having angulated outer ends terminating in front of the rear wheels of the vehicle, said perforations being in the upper portions of said tubes, feed screws rotatably supported within the tubes and having inner ends extending into the compartment, and power means in the compartment operatively connected to the inner ends of screws.

4. In a vehicle having a luggage compartment with a bottom wall, a sanding device mounted within the compartment and including a housing having a compartment therein with an inverted V-shaped upper wall, a pair of coaxial tubes havends extending into the housing and having angulated outer ends terminating in front of the rear wheels of the vehicle, said perforations being in the upper por- T tions of said tubes, feed screws rotatably supported within the tubes and having inner ends extending into the compartment, and power contacting the inner periphery of means in the compartment operatively connected to the inner ends of screws, and resilient sleeves held on the inner end portions of the screws and the tubes at the inner ends thereof to prevent the backing up of abrasive material in the tubes.

5. A sanding device for vehicles comprising a housing having a casing member therein and a rotatably supported in pair of spaced parallel side walls, a pair of coaxial tubes having inner perforated ends extending through said side walls and into the housing, said perforations being in the upper portions of said tubes, a pair of feed screws the tubes for conveying abrasive material in the housing through the tubes, the outer ends of said tubes being provided with outlet means adapted to be disposed in front of the driving wheeis of a vehicle, and power means in the casing member and operatively connected to the screws for rotating the latter, said poi-yer means including an electric motor having armature shaft, said compartment having an end wall facing the motor, a tubular section rotatably supported on said end wall and coupled to the armature shaft, a tubular memher having a central transverse opening receiving the tubular section, a drive gear on the arma- 1 ture shaft, a pair of beveled gears coupled to the screws and'rotatably supported on the side walls, said pair of gears having opposed recesses accom modating the ends of the tubular member, and said pair of gears meshing with said drive gear.

References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 1,427,535 Lamping et al. Aug. 29, 1922 2,033,322 Boyer et al Mar. 10, 1936 2,221,777 Chapman Nov. 19, 1940 2,256,288 McCune Sept. 16, 1941 FOREIGN PATENTS Number Country Date 63,230 Austria Jan. 26, 1914 

